Question

A Pendulum of 14cms long oscillates through
angle of 108°.
find the length of path
described by its extremity​

Answer 1

Answer:

pendulum performs circular arc motion

Also, radius =14cm

Angle (θ)=18

∘

=(

180

π

×18)

c

∴θ=

10

π

c

∴ length of path =rθ

∴ length of path =14×

10

π

cm

∴ length of path =

10

14π

cm=4.396cm